JP6672421B2 - シリコン及びシリコンゲルマニウムのナノワイヤ構造 - Google Patents
シリコン及びシリコンゲルマニウムのナノワイヤ構造 Download PDFInfo
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Description
Claims (21)
- 基板と、
前記基板の上の水平ナノワイヤチャネル構造と、
前記水平ナノワイヤチャネル構造を取り囲むゲート電極であり、当該ゲート電極の一部が前記水平ナノワイヤチャネル構造の上に最上面を持ち、当該ゲート電極の他の一部が前記水平ナノワイヤチャネル構造の下に最下面を持つ、ゲート電極と、
前記ゲート電極の長さ方向の前記ゲート電極のそれぞれの端面に沿って前記ゲート電極に隣接した一対の側壁スペーサであり、当該一対の側壁スペーサの各々の一部が、前記水平ナノワイヤチャネル構造の上の前記ゲート電極の前記一部に横方向で隣接し、当該一対の側壁スペーサの各々の他の一部が、前記水平ナノワイヤチャネル構造の下の前記ゲート電極の前記他の一部に横方向で隣接し、当該一対の側壁スペーサの各々が、一体化された側壁スペーサを形成している、一対の側壁スペーサと、
前記水平ナノワイヤチャネル構造のそれぞれの側のソース/ドレイン構造であり、当該ソース/ドレイン構造の一部が、前記水平ナノワイヤチャネル構造の上の前記ゲート電極の前記一部に横方向で隣接している前記側壁スペーサの前記一部に横方向で隣接及び接触し、且つ当該ソース/ドレイン構造は、前記側壁スペーサの最底面よりも下に底面を有する、ソース/ドレイン構造と、
有する集積回路構造体。 - 前記水平ナノワイヤチャネル構造はシリコン水平ナノワイヤチャネル構造である、請求項1に記載の集積回路構造体。
- 前記水平ナノワイヤチャネル構造はシリコンゲルマニウム水平ナノワイヤチャネル構造である、請求項1に記載の集積回路構造体。
- 前記ゲート電極は、前記水平ナノワイヤチャネル構造を取り囲むゲート誘電体材料と、該ゲート誘電体材料を取り囲むメタルゲートとを有する、請求項1に記載の集積回路構造体。
- 前記ゲート誘電体材料は、high−kゲート誘電体材料を有する、請求項4に記載の集積回路構造体。
- 前記ソース/ドレイン構造は、エピタキシャルシリコンゲルマニウムを有する、請求項1に記載の集積回路構造体。
- 前記ソース/ドレイン構造は、前記水平ナノワイヤチャネル構造の底面よりも下に底面を持つ、請求項1に記載の集積回路構造体。
- 前記基板はSOI基板である、請求項1に記載の集積回路構造体。
- 前記基板はバルクシリコン基板である、請求項1に記載の集積回路構造体。
- 前記ソース/ドレイン構造のうちの第1のものに結合された第1のトレンチコンタクトと、前記ソース/ドレイン構造のうちの第2のものに結合された第2のトレンチコンタクトと、を更に有する請求項1に記載の集積回路構造体。
- 前記ソース/ドレイン構造は、p+ドープされたシリコンゲルマニウムを有し、当該集積回路構造体は更に、前記ソース/ドレイン構造と前記基板との間にシリコンエピタキシャルチップを有する、請求項1に記載の集積回路構造体。
- 前記ソース/ドレイン構造は、n+ドープされたシリコンを有し、当該集積回路構造体は更に、前記ソース/ドレイン構造と前記基板との間にシリコンエピタキシャルチップを有する、請求項1に記載の集積回路構造体。
- 基板と、
前記基板の上の水平シリコンナノワイヤチャネル構造と、
前記水平シリコンナノワイヤチャネル構造を取り囲むPMOSゲート電極であり、当該PMOSゲート電極の一部が前記水平シリコンナノワイヤチャネル構造の上に最上面を持ち、当該PMOSゲート電極の他の一部が前記水平シリコンナノワイヤチャネル構造の下に最下面を持つ、ゲート電極と、
前記PMOSゲート電極の長さ方向の前記PMOSゲート電極のそれぞれの端面に沿って前記PMOSゲート電極に隣接した一対の側壁スペーサであり、当該一対の側壁スペーサの各々の一部が、前記水平シリコンナノワイヤチャネル構造の上の前記PMOSゲート電極の前記一部に横方向で隣接し、当該一対の側壁スペーサの各々の他の一部が、前記水平シリコンナノワイヤチャネル構造の下の前記PMOSゲート電極の前記他の一部に横方向で隣接し、当該一対の側壁スペーサの各々が、一体化された側壁スペーサを形成している、一対の側壁スペーサと、
前記水平シリコンナノワイヤチャネル構造のそれぞれの側の、p+ドープされたシリコンゲルマニウムソース/ドレイン構造であり、当該p+ドープされたシリコンゲルマニウムソース/ドレイン構造の一部が、前記水平シリコンナノワイヤチャネル構造の上の前記PMOSゲート電極の前記一部に横方向で隣接している前記側壁スペーサの前記一部に横方向で隣接及び接触し、且つ当該p+ドープされたシリコンゲルマニウムソース/ドレイン構造は、前記側壁スペーサの最底面よりも下に底面を有する、p+ドープされたシリコンゲルマニウムソース/ドレイン構造と、
有する集積回路構造体。 - 前記PMOSゲート電極は、前記水平シリコンナノワイヤチャネル構造を取り囲むゲート誘電体材料と、該ゲート誘電体材料を取り囲むメタルゲートとを有する、請求項13に記載の集積回路構造体。
- 前記ゲート誘電体材料は、high−kゲート誘電体材料を有する、請求項14に記載の集積回路構造体。
- 前記p+ドープされたシリコンゲルマニウムソース/ドレイン構造は、p+ドープされたエピタキシャルシリコンゲルマニウムソース/ドレイン構造である、請求項13に記載の集積回路構造体。
- 前記p+ドープされたシリコンゲルマニウムソース/ドレイン構造は、前記水平シリコンナノワイヤチャネル構造の底面よりも下に底面を持つ、請求項13に記載の集積回路構造体。
- 前記基板はSOI基板である、請求項13に記載の集積回路構造体。
- 前記基板はバルクシリコン基板である、請求項13に記載の集積回路構造体。
- 前記p+ドープされたシリコンゲルマニウムソース/ドレイン構造のうちの第1のものに結合された第1のトレンチコンタクトと、前記p+ドープされたシリコンゲルマニウムソース/ドレイン構造のうちの第2のものに結合された第2のトレンチコンタクトと、を更に有する請求項13に記載の集積回路構造体。
- 前記p+ドープされたシリコンゲルマニウムソース/ドレイン構造と前記基板との間にシリコンエピタキシャルチップを有する、請求項13に記載の集積回路構造体。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/958,179 | 2010-12-01 | ||
| US12/958,179 US8753942B2 (en) | 2010-12-01 | 2010-12-01 | Silicon and silicon germanium nanowire structures |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2017107611A Division JP6423044B2 (ja) | 2010-12-01 | 2017-05-31 | シリコン及びシリコンゲルマニウムのナノワイヤ構造 |
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